| Author | Message | ||
     Stevasaurus |
Before I send my bike back to the shop again, I thought I would ask for experiences from you all. Here's the scoop: * As some of you may recall, my bike ('08R with a Feb. '08 build date) spent many weeks in the service department for a bad charging system / mirror replacement / brake line recall. When I originally took ownership, it had the 04Z flash. * During that time, the first technician said he found nothing wrong with the bike and that the problem was fixed by upgrading to the 05Z flash. When I got the bike back, not only was the charging system as bad as it ever was, but now there was a pronounced hesitation / hiccuping between 2000 - 4000 RPM's but even up around 5000 RPM's. * I put the bike back in the shop where they gave it to a master tech who had actually been sent to Buell school. (Why didn't this guy get it the first time?) He had my charging system diagnosed in half a day as a bad stator. Stator was replaced, and charging system has been working like a champ ever since. * After all of that, I still have this hesitation / hiccupping situation. Frankly, it's pretty annoying. I don't like to cruise around with the rev's that low, but sometimes in traffic I don't have any choice. With all of that said, here are my questions: 1. How many of you experience this same thing? If so, did you have it pre-05Z flash? 2. If the not-so-bright technician put the 05Z flash on my bike, could he have corrupted it if my battery was low, leaving me now with some sort of freakish Frankenflash? 3. Is there a way on ODIS to see which map is present without my needing to have them hook it up to Digital Tech? 4. I am focusing on the flash since it's the only meaningful thing that has changed, other than the stator, since before my bike was put in originally. (Keep in mind that I don't remember this behavior before the flash upgrade.) Can any of you think of something that would make this happen OTHER than the flash? Thank you in advance for any help/insight you can provide. If it wasn't for this website, I would be in a world of hurt. -Steven | ||
| Stevasaurus |
Oh yeah, my throttle input is constant when this happens too. No feedback from my right hand is contributing to this. I made a point to check. | ||
| Doerman |
I have an Dec 07 build date and the 03Z flash, so I can not correlate directly to your experience with the 05Z. However, I now this. When a new ECM update is applied, the ECM has to re-learn from the operating conditions. During this period of "re-learning and adjustment", you will find that the the bike will run a little rough here and there in the RPM range. It would be consistent with what you are describing, except you have noticed it around 5K. It is usually occurring between 3-4K. The ECM re-learns in about 100 to 150 miles of varied riding. | ||
| Stevasaurus |
Asbjorn, Good call. I've got almost 500 miles on it since I've gotten it back, with a mix of city and freeway, so I'd like to think that has been shaken out already. But it is good to point out as one more thing to exclude. Thanks for the reply! | ||
| Unibear12r |
It learns at under 4.2k rpm too. With this thing I have to constantly be thinking ride low rpm's, high gear and steady throttle if I want it to learn fast. Some people have posted that it can take a while for the hickups to go away. My bet is they can't resist the temptation to play! 1 My bike's hickup's have always been minor, but the earlier the flash the worse it was. 2 I've read posts by Badwebbers claiming that this has happened. But it hasn't happened to me. 3 No 4 Have you denoided and not tied the linkages together? Or checked to see if all the cables and linkages operate freely? Or checked for a partial ground in the ignition circuit? A lot of things could cause this. | ||
| Steeleagle |
I hope the "learn" perspective is correct. I'm patient enough to wait it out and while keeping the revs up does make the surging a non-issue, it IS annoying. I just got my 05Z flash on my 08 May build this week and the surging is "different" but still there. I was really hoping it would eliminate it or improve it an equal amount as the September re-flash (03Z?) did. That re-flash was instantly noticeable and was a WONDERFUL improvement. Mine is 100% stock and I plan to de-noid it, but am curious what (if anything) has the most effect on the surging. FYI: For grins I checked my AFVs prior to the re-flash and they were sitting at 105 F/R as they have the entire life of the bike. Post-flash they were at 100 F/R as expected. By the time I got it home (about 20 minutes of some stop/go, some highway) they were back at 105 F/R, so some "learning" had occured...right? Still have the bumps at <4000 rpm. I'm methodical and plan to do it in stages: De-noid, then use ECMSpy and some "help". Eagle no likey the bumps!! | ||
| Ponti1 |
Just a note from recent personal experience on how long "learning" can take. When I got 05Z, my AFVs were already 100/100, and of course stayed there. A few hundred miles later, I added the K&N. Within 30 miles, the AFVs had changed. However, they continued to change over the next 800-1200 miles. It's still leaner (hotter) than I think it should be, but seems to have settled into its desired AFV area now. | ||
| Zac4mac |
Since her arrival at my front door, a year and a half ago, Loretta has had one glaring flaw. She's "developmentally disabled". She needs a short crash-truck and a lot of love. I rode a popcorn machine for 1100 miles at AFV 100 F&R while I waited for her to learn. When she finally DID learn, I had a wonderfully smooth, powerful machine. My AFVs are now locked at 96 and I have a "smooth as butter" 1125R. Z | ||
| Bob_thompson |
Zac, didn't you adjust the timing slightly also to help low rpm drive ability? Did that not help considerably? Bob | ||
| Zac4mac |
I retarded my idle timing, by a bunch. Idles cooler and has a bit more "thump". Over 10% TPS it goes back to stock numbers. I like it. YMMV Z | ||
| Unibear12r |
Oh the joys of dealing with the EPA! | ||
| Stevasaurus |
So after I posted on Friday and saw the responses that came in, I stayed on the frontage roads instead of the freeway for the trip home from work, and short-shifted whenever possible yesterday too to keep the rev's low and make this puppy go to school. I don't know if my mind is playing tricks on me, but it seems to be getting better already. All I know is rolling on the throttle in a tall gear from 2K RPM's make some sounds come from my engine that were not pretty. Oh, and I had a guy who was driving a Civic next to me plug his left ear as we were alongside of each other. I wonder if he would've liked it better if I was up in the powerband? Then again, if I was up in the powerband, I wouldn't have been alongside of a guy in a Civic. Thank you all for the replies so far. Much appreciated! (Message edited by stevasaurus on June 21, 2009) | ||
| Unibear12r |
Actually I think 60 to 65 in sixth is about 4k on an R. A slow run in a freeway's slow lane will do it. |
